bolster spring造句怎么写

An automatic inspection and grouping of the bolster spring is realized with PLC as the control unit and linear encoder and rotary encoder as the measuring units.

The load spectrum of the bolster spring is determined by means of establishing the mechanics model of bolster and spring of Zhuan 8a type bogie, and by using a known load spectrum of the bolster.

rubber vibration isolators for axle and bolster springs of railway rolling stock